Process of preparing storage-battery plates.



W. MORRSON. PROCESS 0F IPREPRING STORAGE BATTERY PLATES. APPLXUATWNFILED D20. 26, 1903,

nnrrn'n ererne WILLAM MORRISON, OF CHCAG-O, ILLENOS, ASSGNGR', .BYilitl.XESGNYENT DAVID P. PERRY, OF CHICAG, ILLINOIS.

PROCESS OF PlillPAItIlll-'Gf STORAGE-BATTERY ELA'ES.

fo all whom. t may concem:

,lle it l-:nown that lf, lViLLiAM MORRISON, a citizen or' the UnitedStates of America, and resident or Chicago, Cook county, Illinois, haveinvented a certaiifnew and useful improvement. in' Processes of PreparinStorage-Battery Plates, of which the followingis a speeication.,

My invention contemplates an improved process or method of treating leadplates for lead storage batteries.,

Generallyl stated, the object of my invention is to improve thecharacter and increase the geneal serviceaioility of a lead storagehattery plate. i

A particular object is to provide such a `process or method of treatmentas Will tend to improve the character oi; the active niaterial of thelead plates-'that is to say, such a method of treatment as will tend toincrease lthe adhesiveness, toughness, hardness, etc., of the paste oractive material employed in lead battery plates.

To the foregoing and other nseful ends, my invention consists in mattershereinafter set forth and claimed. l

' The accompanying drawing shows a lead storage battery plate which canbe subjected to niy improved process or method of treatment for thepurpose of improving the character of its paste or active material.

l'n carrying ont my invention, I first take a lead grid or othersuitable support, as, for example, the grid A shown in the drawing, andthen Yfill the said 'grid or support with a suitable paste, in anyordinary or approved manner. ln other Words, the construction of theplate is unimportant, as far as the principle of my invention isconverned., and both the grid or support and l the paste may be of anysuitable known or approved character.

Vhen the paste of the plate is thoroughly dry, I then clip the entireplete in a solution or' glycerin and sulfuric acid, these ingredientebeing preferably combined or mixed together in the proportion ot' tenounrds of glycerin to eight gallons of sul uric acid,

in the proeess should he repeated a Way, it is oh ,the lthe dipping ofthe o Specification of Lette/rs atent. ,Elargir-ed Signat, Applicationled December 26, 1993. Serial No. lil-8,7%.

the first quick and light, and the next heav-l ie and oliA longerduration. Next, and zitter the plate has become thoroughly dry, l thendip it in a solution oi forni# dehyde, orniie acid and writer, and acid.This solution is preferably forme.i hy combining' or mixing 'the seid ii'l' together in the proportion of two rounds of orinalde hyde (40%.),tiro pounds of formic acid (25%) and three gallons of ter, together witheizough sulfuric :reid to bring the solution np to 1.2 speoicgravity-,1, This step ten as 1s necessary to Igive, the desired oadhesireness, toughness, hardness, etc., to the paste., The ,e nlnetthen he thoroughly dried before it is placed in the battery.

.Si leed storage he e thus treated )econic active l and oi suchcharacter as to have iittle; tendency to crack or disi negra neoislodgedfrom the grid or hie sirpport. in this ,t provide a novel proc-ess ormethod of treatment which inate rially increases the servceabiiity of alead storage battery.

What l claim es niy invention is:

i, The process of preparing a. storaffe loatterv late which includes ass iillinfr P f b or a lead plate or grid with paste in any suitable ordesired manner., snit-ably drying `the plate, and the subsequentflipping oil the vplane 1n solution formed oy niiving glycerin withVsulfuric e and in another solu tion formed ioy mirri 4 Water 7ithformaldehyde 'formic acid and su nicecid.

2. The process of preparing hattery nlete, which intenties steps the ofa ie-a-d plete with pz any sni'teliie or desire-il manner t c r1 ying ofthe piet/e, next ate m a'sontion `formed Ioy Innung glyc rin Snillnricacid, again drying the plaa, the subsequent treatment ncudng glycgrn,suurc midi farmadd TM? othe plate Wlth suxtably prepared chemhyde undfoit'mlc acm.

icals, said chemicgls incluchng formaldejgned by me :du Chicago, Cook.comming ,l hyde and forum@ acid and sulfmlc amd, and I11no1s,th1s 25thnmfemnem w03. v l .3 mmy drymg the Flute. f Y ,r n nw v Y M' QW x Na (sud. The processo preparmg a storage batx en 'Miu o tary plate, Winchmcludes as steps the re- Wlnesses: @seated umne'slon oit the plate mdlrent A. Dimmu,

y 'solutions mrmed by combining ingredients W'M. Htamum,

